The toil index | Robert Frank
►http://www.washingtonpost.com/business/economy/economists-explain-2011-in-charts/2011/12/21/gIQAT3lg9O_gallery.html#photo=12
Robert Frank, New York University
“My entry is the attached graph of what I call the Toil Index. It’s an index I constructed to portray the most dramatic element of the middle-class squeeze — the effort required to rent a house served by a school of average quality.”